Commercial baking oven



FIG. 1 is a perspective view of a commercial baking oven showing our new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a front elevational view thereof; and,

FIG. 6 is a right side elevational view thereof.

The broken lines showing of an oven door and door handles in FIGS. 1-6, are illustrative of the environmental structure only and form no part of the claimed design. 

The ornamental design for a commercial baking oven, as shown and described. 